WO2017024467A1 - Procédé de communication sans fil, dispositif de réseau et dispositif de terminal - Google Patents

Procédé de communication sans fil, dispositif de réseau et dispositif de terminal Download PDF

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Publication number
WO2017024467A1
WO2017024467A1 PCT/CN2015/086496 CN2015086496W WO2017024467A1 WO 2017024467 A1 WO2017024467 A1 WO 2017024467A1 CN 2015086496 W CN2015086496 W CN 2015086496W WO 2017024467 A1 WO2017024467 A1 WO 2017024467A1
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Prior art keywords
uplink
downlink
downlink ratio
terminal device
ratio
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PCT/CN2015/086496
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English (en)
Chinese (zh)
Inventor
刘劲楠
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华为技术有限公司
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Filing date
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2015/086496 priority Critical patent/WO2017024467A1/fr
Priority to CN201580071824.0A priority patent/CN107113814A/zh
Publication of WO2017024467A1 publication Critical patent/WO2017024467A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • the present invention relates to the field of communications, and more particularly to a method, network device and terminal device for wireless communication.
  • a wireless communication device transmits and receives signals in a time division or frequency division manner, that is, a Frequency Division Duplex ("FDD") and a Time Division Duplex (“TDD").
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • FD Full Duplex
  • the implementation of a full-duplex transceiver requires additional self-interference cancellation processing, which, if used at the terminal, increases the cost of the terminal. Therefore, one possible architecture considered in the mobile cellular network is that the base station is a full-duplex transceiver, enabling simultaneous simultaneous transmission and reception.
  • the terminal is still a half-duplex structure. Therefore, the resource usage direction of the terminal and the resource usage direction of the base station may not be completely consistent. Some time-frequency resources seen by the terminal are in uplink or downlink, and the actual base station may be in full-duplex on this time-frequency resource.
  • a time-frequency resource is used for uplink or downlink, which is cell-specific or carrier-specific. This is because in the existing system, whether the base station or the terminal is half-duplex, all the terminals in the base station use resources in a consistent manner.
  • the uplink band can only be used for uplink data transmission, while the downlink band can only be used for downlink data transmission.
  • system Information System Information Block
  • SIB system Information Block
  • enhanced Interference Mitigation & Traffic Adaptation (“eIMTA”) is introduced.
  • the technology enhances the notification frequency of the uplink and downlink ratios, and allows multiple serving cells or multiple carriers of one terminal to adopt different uplink and downlink ratios.
  • all terminals still adopt the same uplink-downlink ratio. Therefore, the full-duplex capability of the base station cannot be utilized, and the full-duplex technology cannot be utilized to improve the spectrum utilization.
  • the invention provides a method, a network device and a terminal device for wireless communication, which can utilize the full-duplex capability of the network device to improve spectrum resource utilization.
  • the first aspect provides a method for wireless communication, including: establishing a radio resource control RRC connection with a terminal device according to a first uplink-downlink ratio, where the first uplink-downlink ratio is a cell-specific uplink-downlink ratio;
  • the terminal device sends a second uplink-downlink ratio, where the second uplink-downlink ratio is a specific uplink-downlink ratio of the terminal device, and the second uplink-downlink ratio is different from the first uplink-downlink ratio;
  • the ratio is wirelessly communicated with the terminal device.
  • the method further includes: when determining that the state of the terminal device is an RRC idle state, performing, according to the first uplink and downlink ratio, with the terminal device Wireless communication.
  • the sending the second uplink and downlink ratio to the terminal device includes:
  • ePDCCH signaling Sending an enhanced physical downlink control channel ePDCCH signaling to the terminal device, where the ePDCCH signaling carries the second uplink and downlink ratio.
  • the sending, by the terminal device, the second uplink and downlink ratio including: including the terminal
  • Each terminal device in the terminal group of the device sends a first proportion configuration message including the second uplink and downlink ratio, where the first ratio configuration message includes a group sequence number of the terminal group.
  • the sending, by the terminal device, the second uplink and downlink ratio includes: The beam corresponding to the terminal group of the device is sent to each terminal device in the terminal group, including The second ratio configuration message of the second uplink and downlink ratio.
  • the second uplink and downlink ratio is Any one of the uplink and downlink ratios in the first uplink and downlink ratio set, where the first uplink and downlink ratio set is a set of uplink and downlink ratios as shown in the following table:
  • D represents a downlink subframe
  • U represents an uplink subframe
  • S represents a special subframe
  • the second uplink and downlink ratio is Any one of the uplink and downlink ratios in the second uplink and downlink ratio set, where the second uplink and downlink ratio set is a set of uplink and downlink ratios as shown in the following table:
  • D represents a downlink subframe
  • U represents an uplink subframe
  • S represents a special subframe
  • X represents no limitation.
  • the subframe 0 corresponding to the uplink and downlink ratio 7 is an uplink subframe, and the subframe 0 is used for transmission.
  • the second uplink and downlink ratio is The uplink control ratio of the secondary carrier of the terminal device, the method further includes: receiving uplink control information of the secondary carrier that is sent by the terminal device by using a physical uplink control channel (PUCCH) configured on the primary cell Pscell, where the uplink control information includes At least one of the following information: hybrid automatic repeat request HARQ feedback confirmation information, channel quality information, and scheduling request information.
  • PUCCH physical uplink control channel
  • the F m subcarriers on both sides of the system bandwidth corresponding to each of the m 2 subframes corresponding to the second uplink and downlink ratio are used for transmitting the PUCCH, and the intermediate F n subcarriers of the system bandwidth are used for transmitting the PDCCH, m 2 , F m and F n are positive integers, and the sum of F m and F n is less than or equal to a second predetermined threshold;
  • N is the number of subframes included in a radio frame.
  • the sending the second uplink and downlink ratio to the terminal device including: Sending different second uplink and downlink ratios to multiple terminal devices.
  • a method for wireless communication including: establishing a radio resource control RRC connection with a network device according to a first uplink-downlink ratio, where the first uplink-downlink ratio is a cell-specific uplink-downlink ratio; a second uplink-downlink ratio that is sent by the network device, where the second uplink-downlink ratio is a specific uplink-downlink ratio of the terminal device, and the second uplink-downlink ratio is different from the first uplink-downlink ratio;
  • the line ratio is wirelessly communicated with the network device.
  • the method further includes: performing wireless communication with the network device according to the first uplink-downlink ratio when the state is an RRC idle state.
  • the receiving the second uplink and downlink ratio sent by the network device includes:
  • the receiving, by the network device, the second uplink and downlink ratio includes: receiving the network And sending, by the device, a first proportion configuration message including the second uplink and downlink ratio, where the first ratio configuration message is sent by the network device to each terminal device in the terminal group including the terminal device, the ratio is The configuration message includes the group number of the terminal group.
  • the receiving, by the network device, the second uplink and downlink ratio includes: receiving the network The device sends a second proportion configuration message including the second uplink and downlink ratio by using a beam corresponding to the terminal group of the terminal device.
  • the second uplink and downlink ratio is Any one of the uplink and downlink ratios in the first uplink and downlink ratio set, where the first uplink and downlink ratio set is a set of uplink and downlink ratios as shown in the following table:
  • D represents a downlink subframe
  • U represents an uplink subframe
  • S represents a special subframe
  • the second uplink and downlink ratio is any one of the uplink and downlink ratios in the second uplink and downlink ratio set, and the second uplink and downlink ratio is used.
  • the collection is a collection of up-down ratios as shown in the table below:
  • D represents a downlink subframe
  • U represents an uplink subframe
  • S represents a special subframe
  • X represents no limitation.
  • the subframe 0 corresponding to the uplink and downlink ratio 7 is an uplink subframe, where the subframe 0 is used for transmission.
  • the second uplink and downlink ratio is The uplink and downlink ratio of the secondary carrier of the terminal device, the method further includes: transmitting the uplink control information of the secondary carrier to the network device by using a physical uplink control channel PUCCH configured on the primary cell Pscell, where the uplink control information includes the following information At least one of: hybrid automatic repeat request HARQ feedback confirmation information, channel quality information, and scheduling request information.
  • the second uplink and downlink ratio corresponds to The first T m symbols in the m 1 subframes are used to transmit the PDCCH, the last T n symbols are used to transmit the PUCCH, m 1 , T m and T n are positive integers, and the sum of T m and T n is less than or equal to First preset threshold;
  • the F m subcarriers on both sides of the system bandwidth corresponding to each of the m 2 subframes corresponding to the second uplink and downlink ratio are used for transmitting PUCCH, and the intermediate F n subcarriers of the system bandwidth are used for transmitting the PDCCH, m 2 , F m and F n are positive integers, and the sum of F m and F n is less than or equal to a second predetermined threshold;
  • N is the number of subframes included in a radio frame.
  • the receiving, by the network device, the second uplink and downlink ratio including : receiving one of the uplink and downlink ratios of the different second uplink and downlink ratios sent by the network device to the multiple terminal devices.
  • a network device including: a connection establishing module, configured to establish a radio resource control RRC connection with a terminal device according to a first uplink-downlink ratio, where the first uplink-downlink ratio is a cell-specific uplink and downlink configuration a sending module, configured to send a second uplink-downlink ratio to the terminal device, where the second uplink-downlink ratio is a specific uplink-downlink ratio of the terminal device, and the second uplink-downlink ratio is matched with the first uplink-downlink ratio
  • the communication module is configured to perform wireless communication with the terminal device according to the second uplink-downlink ratio.
  • the communications module is further configured to: when determining that the state of the terminal device is an RRC idle state, according to the first uplink and downlink ratio and the terminal The device communicates wirelessly.
  • the sending module is specifically configured to:
  • ePDCCH signaling Sending an enhanced physical downlink control channel ePDCCH signaling to the terminal device, where the ePDCCH signaling carries the second uplink and downlink ratio.
  • the sending module is specifically configured to: to each of the terminal groups including the terminal device The terminal device sends a first proportion configuration message including the second uplink and downlink ratio, where the first proportion configuration message includes a group sequence number of the terminal group.
  • the sending module is specifically configured to: use a beam direction corresponding to the terminal group that includes the terminal device Each terminal device in the terminal group sends a second proportion configuration message including the second uplink and downlink ratio.
  • the second uplink and downlink ratio is Any one of the uplink and downlink ratios in the first uplink and downlink ratio set, where the first uplink and downlink ratio set is a set of uplink and downlink ratios as shown in the following table:
  • D represents a downlink subframe
  • U represents an uplink subframe
  • S represents a special subframe
  • the second uplink and downlink ratio is Any one of the uplink and downlink ratios in the second uplink and downlink ratio set, where the second uplink and downlink ratio set is a set of uplink and downlink ratios as shown in the following table:
  • D is a downlink subframe
  • U is an uplink subframe
  • S is a special subframe
  • X is not limited. set.
  • the subframe 0 corresponding to the uplink and downlink ratio 7 is an uplink subframe, and the subframe 0 is used for transmission.
  • the second uplink and downlink ratio is The uplink and downlink ratio of the secondary carrier of the terminal device
  • the network device further includes: a receiving module, configured to receive uplink control information of the secondary carrier that is sent by the terminal device by using a physical uplink control channel PUCCH configured on the primary cell Pscell, where
  • the uplink control information includes at least one of the following information: hybrid automatic repeat request HARQ feedback acknowledgement information, channel quality information, and scheduling request information.
  • the second uplink and downlink ratio corresponds to The first T m symbols in the m 1 subframes are used to transmit the PDCCH, the last T n symbols are used to transmit the PUCCH, m 1 , T m and T n are positive integers, and the sum of T m and T n is less than or equal to First preset threshold;
  • the F m subcarriers on both sides of the system bandwidth corresponding to each of the m 2 subframes corresponding to the second uplink and downlink ratio are used for transmitting the PUCCH, and the intermediate F n subcarriers of the system bandwidth are used for transmitting the PDCCH, m 2 , F m and F n are positive integers, and the sum of F m and F n is less than or equal to a second predetermined threshold;
  • N is the number of subframes included in a radio frame.
  • the sending module is specifically configured to: A plurality of terminal devices send different second uplink and downlink ratios.
  • a fourth aspect provides a terminal device, including: a connection establishing module, configured to establish a radio resource control RRC connection with a network device according to a first uplink-downlink ratio, where the first uplink-downlink ratio is a cell-specific uplink and downlink configuration a receiving module, configured to receive a second uplink-downlink ratio sent by the network device, where the second uplink-downlink ratio is a specific uplink-downlink ratio of the terminal device, the second uplink-downlink ratio and the first uplink and downlink ratio The ratio is different; the communication module is configured to perform wireless communication with the network device according to the second uplink-downlink ratio received by the receiving module.
  • a connection establishing module configured to establish a radio resource control RRC connection with a network device according to a first uplink-downlink ratio, where the first uplink-downlink ratio is a cell-specific uplink and downlink configuration
  • a receiving module configured to receive a second uplink-downlink ratio sent by the network device, where the second uplink-downlink
  • the communications module is further configured to: when the state of the terminal device is an RRC idle state, according to the first uplink and downlink ratio and the network device Make wireless communication.
  • the receiving module is specifically configured to:
  • the receiving module is further configured to: receive, by the network device, the second uplink and downlink a first ratio configuration message sent by the network device to each terminal device in the terminal group including the terminal device, where the first proportion configuration message includes the terminal group Group number.
  • the receiving module is further configured to: receive, by the network device, a terminal group that includes the terminal device And transmitting, by the corresponding beam, a second proportion configuration message including the second uplink and downlink ratio.
  • the second uplink and downlink ratio is Any one of the uplink and downlink ratios in the first uplink and downlink ratio set, where the first uplink and downlink ratio set is a set of uplink and downlink ratios as shown in the following table:
  • D represents a downlink subframe
  • U represents an uplink subframe
  • S represents a special subframe
  • the second uplink and downlink ratio is Any one of the uplink and downlink ratios in the second uplink and downlink ratio set, where the second uplink and downlink ratio set is a set of uplink and downlink ratios as shown in the following table:
  • D represents a downlink subframe
  • U represents an uplink subframe
  • S represents a special subframe
  • X represents no limitation.
  • the subframe 0 corresponding to the uplink and downlink ratio 7 is an uplink subframe, where the subframe 0 is used for transmission.
  • the second uplink and downlink ratio is The uplink and downlink ratio of the secondary carrier of the terminal device, the terminal device further includes: a sending module, configured to send uplink control information of the secondary carrier to the network device by using a physical uplink control channel PUCCH configured on the primary cell Pscell, where
  • the uplink control information includes at least one of the following information: hybrid automatic repeat request HARQ feedback acknowledgement information, channel quality information, and scheduling request information.
  • the two side F m subcarriers of the system bandwidth corresponding to each of the m 2 subframes corresponding to the second uplink and downlink ratio are used for transmitting a PUCCH, and the intermediate F n subcarriers of the system bandwidth are used for transmitting the PDCCH, m 2 , F m and F n are positive integers, and the sum of F m and F n is less than or equal to a second predetermined threshold;
  • N is the number of subframes included in a radio frame.
  • the receiving module is specifically configured to: receive The second uplink-downlink ratio of the different second uplink-downlink ratios sent by the network device to the multiple terminal devices.
  • the method, the network device, and the terminal device of the wireless communication provided by the embodiment of the present invention, after the network device and the terminal device establish an RRC connection according to the specific uplink-downlink ratio of the cell, send the cell-specific upper and lower to the terminal device. Aligning the uplink and downlink ratios of different terminal devices with different ratios, and communicating with the terminal devices according to the specific uplink and downlink ratios of the terminal devices, whereby the network devices can pass different upper and lower terminals with different terminal devices in one cell.
  • the line ratio is used for communication, so that the full-duplex capability of the network device can be fully utilized, and the utilization of spectrum resources can be improved.
  • FIG. 1 is a schematic structural diagram of a communication system to which an embodiment of the present invention is applied;
  • FIG. 2 is a schematic flowchart of a method of wireless communication according to an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of a network device operating on multiple beams according to an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of a channel of a PBCH in subframe 0 according to an embodiment of the present invention
  • FIG. 5 is a schematic diagram of locations of PSS and SSS within a frame, in accordance with an embodiment of the present invention.
  • FIG. 6 is another schematic flowchart of a method for wireless communication according to an embodiment of the present invention.
  • FIG. 7 is a schematic diagram of transmitting a PDCCH and a PUCCH in a time division manner in a subframe according to an embodiment of the present invention
  • FIG. 8 is a schematic diagram of transmitting a PDCCH and a PUCCH in a frequency division manner in a subframe according to an embodiment of the present invention
  • FIG. 9 is a schematic flowchart of a method of wireless communication according to another embodiment of the present invention.
  • FIG. 10 is another schematic flowchart of a method of wireless communication according to another embodiment of the present invention.
  • FIG. 11 is a schematic block diagram of a network device according to an embodiment of the present invention.
  • FIG. 12 is another schematic block diagram of a network device according to an embodiment of the present invention.
  • FIG. 13 is a schematic block diagram of a terminal device according to an embodiment of the present invention.
  • FIG. 14 is another schematic block diagram of a terminal device according to an embodiment of the present invention.
  • FIG. 15 is a schematic block diagram of a network device according to another embodiment of the present invention.
  • FIG. 16 is a schematic block diagram of a terminal device according to another embodiment of the present invention.
  • GSM Global System of Mobile Communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • UMTS Universal Mobile Telecommunication System
  • the user equipment may also be referred to as a terminal equipment (Terminal Equipment), a mobile station (Mobile Station, referred to as "MS”), a mobile terminal (Mobile Terminal), etc.
  • the user equipment may be A radio access network (Radio Access Network, referred to as "RAN") communicates with one or more core networks.
  • the user equipment may be a mobile phone (or "cellular" phone), a computer with a mobile terminal, or the like.
  • it may be a portable, pocket-sized, hand-held, computer-built or in-vehicle mobile device, and a terminal device in a future 5G network or a terminal device in a future evolved PLMN network.
  • the network device may be used in a device that communicates with the user equipment, and the network device may be a base station (Base Transceiver Station, abbreviated as "BTS”) in the GSM system or CDMA. It is a base station (NodeB, abbreviated as "NB”) in the WCDMA system, and may also be an evolved base station (Evolutional Node B) in the LTE system.
  • BTS Base Transceiver Station
  • NB base station
  • Evolutional Node B evolved base station
  • eNB eNodeB
  • the network device may be a relay station, an access point, an in-vehicle device, a wearable device, and a network side device in a future 5G network or a network device in a future evolved PLMN network.
  • FIG. 1 is a schematic diagram of an application scenario according to an embodiment of the present invention.
  • the base station 110 has a full-duplex capability as a full-duplex base station, and the terminal devices 120-140 have a half-duplex capability as a half-duplex terminal.
  • At least one of the terminal devices 120-140 can demodulate the signaling of the uplink and downlink ratios sent by the base station, and the network device can configure different uplink and downlink ratios for the terminal devices 120-140, for example, in FIG.
  • the uplink and downlink ratios are configured on the uplink and downlink ratios of 0,130, and the uplink and downlink ratios are configured on the 1,140.
  • the base station 110 may also have neighboring base stations and terminal devices that transmit services on the same time-frequency resource.
  • a full-duplex base station refers to a base station that has the capability to eliminate its own frequency band interference and can transmit and receive signals at the same frequency.
  • the full-duplex base station can have multiple working modes, such as full-duplex mode and half-duplex. Mode, etc., full-duplex base station can work in full-duplex mode, or can be rolled back (switched) to half-duplex mode.
  • the full-duplex base station can determine whether to work in full-duplex mode or half-duplex mode according to the interference, service, and energy consumption of the system.
  • the full-duplex base station works in full-duplex mode and can be in two states.
  • One is full-duplex communication, and the corresponding resource is full-duplex time-frequency resource, that is, the full-duplex base station is in full-duplex mode.
  • the data is sent and the data is received.
  • the other type is full-duplex monitoring, and the corresponding resource is a half-duplex downlink resource, that is, the full-duplex base station transmits data on the half-duplex downlink resource, and the receiving link only serves as a monitoring or measuring interference, and does not demodulate the received data.
  • the full-duplex base station works in half-duplex mode, and the corresponding resource is a half-duplex time-frequency resource.
  • the full-duplex base station transmits or receives only signals on the half-duplex time-frequency resource.
  • the actual working state of the full-duplex base station in the present invention is related to the uplink-downlink ratio of the currently scheduled terminal and the specific time-frequency resource of the scheduling terminal of the base station.
  • a half-duplex terminal is a terminal device that can only receive signals or only transmit signals at the same frequency point and in the same time period.
  • the time-frequency resource may be a communication resource.
  • the time-frequency resource may refer to a communication resource having two dimensions of time and frequency.
  • the embodiment of the present invention does not limit the minimum unit of the time-frequency resource, for example, the time-frequency.
  • the smallest unit of resources can be subframes, frames, time slots, etc. in time.
  • the time-frequency dimension may be a sub-band or an entire working frequency band, a sub-carrier, etc., and the time-frequency dimension may be a resource block (Resource Block, simply referred to as "RB"), a resource element (Resource Element, "RE”), or the like.
  • RB resource block
  • RE resource element
  • FIG. 2 is a schematic flowchart of a method for wireless communication according to an embodiment of the present invention. The method may be performed by a network device. As shown in FIG. 2, the method 200 includes:
  • S210 Establish a radio resource control RRC connection with the terminal device according to the first uplink-downlink ratio, where the first uplink-downlink ratio is a cell-specific uplink-downlink ratio;
  • the second uplink and downlink ratio is sent to the terminal device, where the second uplink and downlink ratio is a specific uplink and downlink ratio of the terminal device, and the second uplink and downlink ratio is different from the first uplink and downlink ratio.
  • the network device and the terminal device establish a radio resource control RRC connection according to the first uplink-downlink ratio of the cell where the terminal device is located, and then the network device sends the second uplink and downlink ratio to the terminal device.
  • the terminal device switches the uplink-downlink ratio configured by the first uplink-downlink ratio to the second uplink-downlink ratio, and according to the second uplink and downlink The ratio communicates with the network device.
  • the network device may reconfigure the uplink-downlink ratio of the terminal device by the uplink-downlink ratio of the cell in which the terminal device is located to the terminal.
  • the uplink and downlink ratios of the cells in which the device is located are different from the uplink and downlink ratios. Therefore, the network device can perform wireless communication with different uplink and downlink ratios of different terminal devices in the same cell. Therefore, the entire network device can be utilized. Duplex capability to improve spectrum resource utilization.
  • the cell-specific uplink-downlink ratio refers to the uplink-downlink ratio that the network device sends to all terminal devices in a cell through broadcast signaling; the terminal device-specific uplink-downlink configuration The ratio refers to the uplink-downlink ratio sent to certain terminal devices in the cell after the network device establishes an RRC connection with the terminal device in the cell.
  • the terminal device that receives the terminal device-specific uplink-downlink ratio transmitted by the network device is called a high-version terminal device; and the terminal device-specific upper and lower devices that are sent by the network device cannot be received.
  • the terminal device of the line ratio is called a general terminal device, but the embodiment of the present invention is not limited to this name.
  • the terminal device may obtain a cell-specific uplink-downlink ratio through a System Information Block (SIB1), before the network device establishes an RRC connection with the terminal device. And all terminals in the same cell
  • SIB1 System Information Block
  • the device is configured to be the cell-specific uplink-downlink ratio of the cell in which the cell is located.
  • the network device may send the terminal device-specific uplink-downlink ratio to some terminal devices in the cell.
  • the higher version of the terminal device actually obtains two ratios of the terminal device-specific uplink-downlink ratio and the cell-specific uplink-downlink ratio, but uses the terminal device-specific uplink-downlink ratio to communicate with the network device, and the network device also
  • the terminal device-specific uplink-downlink ratio is sent to the terminal device, so that when the uplink-downlink ratio is updated, the terminal device is notified of the new uplink-downlink ratio in the current downlink subframe resource of the terminal device.
  • the normal terminal device cannot correctly demodulate the signaling of the uplink and downlink ratios of the terminal device that is transmitted by the network device, and still communicates with the network device by using the cell-specific uplink-downlink ratio, thereby different in the same cell.
  • the uplink and downlink ratios of the terminal equipment configuration are different, and the full-duplex capability of the network equipment can be utilized to improve the utilization of spectrum resources.
  • the network device changes the uplink and downlink ratio of the high-end terminal device by other forms.
  • the network device notifies the terminal device of its own full-duplex capability.
  • the terminal device requests a certain device-specific uplink-downlink ratio from the network device according to its own traffic load.
  • the network device confirms to the terminal device.
  • the acknowledgment message may carry only the acknowledgment information, and may also carry the terminal device specific uplink and downlink ratios actually allocated to the terminal device.
  • the network device may send different second uplink and downlink ratios to the multiple terminal devices. That is to say, the network device can send different terminal device-specific uplink-downlink ratios to at least two terminal devices. At this time, there are at least three different uplink-downlink ratios in one cell.
  • the network device may send the terminal device specific uplink-downlink ratio to the terminal device 1, for example, the uplink-downlink ratio 0, and send the terminal device-specific uplink-downlink ratio to the terminal device 2, for example, the uplink-downlink ratio 1, the terminal device 3
  • the other terminal devices in the cell still configure the cell-specific uplink-downlink ratio, for example, the uplink-downlink ratio 2
  • the network device can also send the terminal device-specific uplink-downlink ratio to a group of terminal devices, for example, the uplink-downlink ratio 4,
  • the other group of terminal devices transmits the uplink and downlink ratios of the terminal device, for example, the uplink and downlink ratios 6, and the other terminal devices in the cell still configure the cell-specific uplink-downlink ratio, for example, the uplink-downlink ratio 3.
  • the invention is not limited to this.
  • the terminal device when determining that the state of the terminal device is an RRC idle state, wireless communication is performed with the terminal device according to the first uplink-downlink ratio. That is, when the higher version of the terminal device is in the RRC-idle state, in order to minimize the extra overhead caused by the specific upper and lower ratios of the terminal device, the terminal device may be based on an agreement with the network device in advance or The indication of the network device resets the current uplink-downlink ratio to the cell-specific uplink-downlink ratio.
  • the paging channel is transmitted through a Physical Downlink Share Channel ("PDSCH"). Therefore, for the terminal device in the idle state, the network device transmits the paging channel in the downlink subframe in the cell-specific uplink-downlink ratio. For a terminal device in a Connected state, the network device sends a page in a downlink subframe in the current uplink and downlink ratio of the terminal device.
  • the terminal device can know, according to the current uplink-downlink ratio, a physical downlink control channel (Physical Downlink Control Channel, referred to as "PDCCH”), and determine whether there is a paging in the PDSCH resource indicated by the PDCCH according to the radio network temporary identifier P-RNTI. information.
  • PDSCH Physical Downlink Share Channel
  • the network device may send RRC dedicated signaling to the terminal device, where the RRC dedicated signaling carries the second uplink and downlink ratio;
  • the network device may send a specific terminal device search space to the terminal device, where the specific terminal device search space carries the second uplink and downlink matching ratio;
  • the network device sends an enhanced physical downlink control channel ePDDCH to the terminal device, where the ePDDCH carries the second uplink and downlink ratio.
  • ePDDCH enhanced physical downlink control channel
  • the network device may separately send an uplink and downlink ratio for the terminal device to each terminal device in the cell.
  • the network device may carry the RRC dedicated signaling in the downlink PDSCH resource indicated by the initial uplink-downlink ratio (in the cell-specific uplink-downlink ratio) of the terminal device, where the RRC dedicated signaling carries the second uplink-downlink ratio; or
  • the network device notifies the terminal device of the terminal device specific uplink-downlink ratio of the terminal device through the PDCCH terminal device-specific search space or the ePDCCH channel.
  • the terminal device-specific uplink-downlink ratio is configured by RRC signaling, and the terminal devices of different ratios are scheduled by using the PDCCH/ePDCCH to implement fast change of the actual downlink resources of the cell.
  • the sub-frames 0 to 9 corresponding to the ratio 0 are: DSUUUDSUUU
  • the sub-frames 0 to 9 corresponding to the ratio 1 are: DSUUDDSUUD
  • the sub-frames 0 to 9 corresponding to the ratio 6 are: DSUUUDSUUD
  • D represents a downlink subframe
  • U represents an uplink subframe
  • S represents a special subframe.
  • a terminal device with a ratio of 1 and a ratio of 0 If a terminal device with a ratio of 1 and a ratio of 0 is scheduled, it can be used as the uplink 6 subframes, and the downlink is 4 subframes + 2 downlink pilot slots (Downlink Pilot Time Slot, referred to as "DwPTS". "). If a terminal device with a ratio of 1 and a ratio of 6 is scheduled. Then, it can be actually used as 5 subframes of the uplink, and 4 subframes + 2 DwPTS used as the downlink. This shows that even if the ratio The change is relatively slow.
  • RRC signaling can also be used to obtain dynamic uplink-downlink ratio effects by scheduling terminal devices with different ratios.
  • the network device may send, to each terminal device in the terminal group that includes the terminal device, a first proportion configuration message including the second uplink and downlink ratio, where the first ratio configuration message includes The group number of the terminal group.
  • the network device may send a first ratio configuration message including an uplink and downlink ratio to all the terminal devices belonging to one terminal group, and the terminal device in the terminal group according to the group sequence number carried in the first ratio configuration message
  • the uplink-downlink ratio is determined to be a specific uplink-downlink ratio of the terminal device allocated by the network device, and then wirelessly communicates with the network device according to the uplink-downlink ratio specified by the terminal device.
  • the network device can carry the terminal device-specific uplink-downlink ratio through multicast (UE Group Specific) signaling, thereby reducing signaling overhead.
  • Each terminal group can be configured with different uplink and downlink ratios, which can fully utilize the full-duplex performance of network devices and improve spectrum resource utilization.
  • the network device may send, by using a beam corresponding to the terminal group of the terminal device, a second proportion configuration message including the second uplink and downlink ratio to each terminal device in the terminal group.
  • the network device can work on multiple beams. As shown in FIG. 3, each beam has a specific uplink-downlink ratio, so that multiple terminal devices working on the beam form a group.
  • the division of the terminal group by the beam enables the terminal devices in the same terminal group to adopt the same uplink-downlink ratio, so that the transmission direction (uplink or downlink) of the terminal devices in the same terminal group is consistent, and the terminal devices are reduced. interference.
  • the second ratio configuration message may carry beam information of the beam, for example, the beam information may be a sequence number of the beam.
  • the beam corresponding to the terminal may also be determined by a precoding matrix corresponding to the beam, a beam precoding matrix sequence number, and a physical channel transmission format of the uplink and downlink proportioning message specific to the transmission terminal device.
  • the network device and the terminal device may pre-approve the effective time of the new uplink and downlink ratio, for example, after the terminal device successfully receives the new uplink and downlink ratio sent by the network device.
  • the new uplink and downlink ratios in the subframe take effect.
  • the network device may also send the indication information to the terminal device to indicate the effective time of the new uplink and downlink ratio, which is not limited by the present invention.
  • the second uplink and downlink ratio is any one of the uplink and downlink ratios in the first uplink and downlink ratio set, and the first uplink and downlink ratio set is as shown in Table 1 below.
  • D represents a downlink subframe
  • U represents an uplink subframe
  • S represents a special subframe
  • the network device may send the downlink data packet to the terminal device; at the uplink subframe time, the terminal device may send the uplink data packet to the network device.
  • the network device may send a downlink data packet to the terminal device, but the terminal device cannot send the uplink data packet to the network device, and thus the special subframe is also generally treated as a downlink subframe.
  • the network devices in the resources corresponding to the subframes 3, 4, 7, 8, and 9 can work in the full duplex mode by scheduling terminals that do not have different ratios, and work in the full network mode on the network device.
  • the cell-specific uplink-downlink ratio is not the actual resource usage in the cell, but the uplink-downlink resource ratio used by the normal version of the terminal device.
  • the second uplink and downlink ratio is any one of the uplink and downlink ratios in the second uplink and downlink ratio set, and the second uplink and downlink ratio set is as shown in Table 2 below.
  • Table 2 The collection of the upper and lower ratios:
  • D is the downlink subframe
  • U is the uplink subframe
  • S is the special subframe
  • X is not limited. It can be an uplink subframe, a downlink subframe, a blank subframe, or other special uplink and downlink resources. .
  • subframe 2 is D and subframe 5 is U.
  • only one uplink-downlink ratio is added, and the 3-bit information can still be used to identify the uplink-downlink ratio set. No additional overhead is incurred.
  • the important downlink channel in the subframe 5 may be interfered by the uplink signal sent by the terminal.
  • the subframe 5 includes a scheduled broadcast message (40ms, 80ms, 160ms) that may be periodically, such as a System Information Block ("SIB").
  • SIB System Information Block
  • the scheduling period is longer than the length of one frame, the avoidance can be implemented by scheduling of the network device, and is not reflected by the uplink and downlink ratio. That is, on the transmission resource of SIB1, the network device does not schedule the terminal device to send any uplink signal.
  • the secondary synchronization signal (Secondary Synchronization Signal, referred to as "SSS") is located on the 72 subcarriers in the center of the last symbol of subframe 5, and is not affected if it is a PUCCH transmission. If it is a PUCCH, the PUSCH transmission needs to be punctured and rate matched to avoid the resources where the SSS is located.
  • SSS Secondary Synchronization Signal
  • the subframe 0 corresponding to the uplink-downlink ratio 7 is an uplink subframe, and the subframe 0 is used to transmit the probe reference signal SRS and/or the preamble 4.
  • the seven matching neutron subframes 0 currently defined in the LTE system are all downlink subframes.
  • subframe 0 can be designed as a U subframe.
  • PBCH Physical Broadcast Channel
  • PSS Primary Synchronization Signal
  • the network device works in full-duplex mode within these resources, the terminal device may not be able to obtain synchronization and system information. It is therefore necessary to avoid network devices adopting full-duplex mode within these resources. It can be avoided by means of time division and frequency division.
  • Figure 4 shows the channel of the PBCH in subframe 0. It can be seen that subframe 0 contains the PBCH channel (the center of the system bandwidth is 6 RBs, the normal CP is located on the 0 to 3 symbols of the 1 slot) and the SSS (1). On the last symbol of the time slot). Therefore, network devices should avoid these resources being scheduled to full duplex mode.
  • the terminal device needs to measure the path loss by using Cell-Specific Reference Signals (CRS), in order not to affect the measurement of the path loss.
  • CRS Cell-Specific Reference Signals
  • a portion of the half-duplex resources need to be reserved for transmission of CRS and terminal equipment path loss measurements.
  • PRACH Physical Random Access Channel
  • SRS Sounding Reference Signal
  • the present invention refers to this special uplink subframe as a T subframe.
  • the second uplink-downlink ratio is an uplink-downlink ratio of the secondary carrier of the terminal device, and the method 200 further includes:
  • S240 Receive uplink control information of the secondary carrier that is sent by the terminal device by using a physical uplink control channel (PUCCH) configured on the primary cell Pscell, where the uplink control information includes at least one of the following information: hybrid automatic repeat request (HARQ feedback) Confirmation information, channel quality information, and scheduling request information.
  • PUCCH physical uplink control channel
  • HARQ feedback hybrid automatic repeat request
  • uplink control information such as automatic retransmission request HARQ feedback acknowledgement information, transport channel quality information, and scheduling request may be mixed in the PUCCH channel.
  • PUCCH and downlink resource collisions especially PDCCH channels.
  • a carrier aggregation (“CAR") method is adopted to avoid PUCCH and downlink resource conflicts.
  • the sub-carriers of the full-duplex operation are determined as the secondary carrier, and the uplink control information of the secondary carrier is fed back through the PUCCH channel of the primary carrier.
  • the uplink-downlink ratio 7 in Table 2 can be adopted only on the terminal device supporting carrier aggregation. The PUCCH channel and PDCCH collision on the secondary carrier are avoided.
  • T is an uplink resource, where the symbols of the CRS, PBCH, and SSS do not send any uplink signals, and other symbols may be used to transmit the Preamble format 4 and/or the SRS.
  • the PRACH is located on a valid resource, and the PRACH resource needs to be enabled to indicate a resource in the uplink resource that can be used to transmit the PRACH.
  • Some of the shorter resources in subframe 0 are here.
  • Preamble now has 5 types of length, where format 0 occupies 1 sub-frame, format 1 and 2 occupy 2 sub-frames, and format 3 occupies 3 sub-frames.
  • Format 4 occupies 2 OFDM symbols. Then only formats 0, 1, 2 and 4 are supported for this ratio time, since there are no consecutive 3 uplink subframes. According to different ratios, the location of legal resources can be specified.
  • f RA denotes a frequency position of each PRACH channel indicating an intra-frequency division at the same time based on a frequency offset parameter (Prach-Frequency Offset); Indicates the location of the radio frame of the PRACH channel, 0 represents all radio frames, 1 is an odd radio frame, and 2 is an even radio frame; Refers to the PRACH in the first or second half of the radio frame, where 0 is the first half of the frame and 1 is the second half of the frame; Indicates the subframe number of the PRACH channel in the 5ms field, with * indicating on the UpPTS, which is a short sequence.
  • Prach-Frequency Offset a frequency offset parameter
  • the HARQ mechanism is adopted in the LTE system.
  • Receiving information needs to pass feedback NACK ⁇ ACK.
  • retransmission combining is used to reduce the receiving error rate.
  • the uplink PDSCH channel in the LTE is an asynchronous HARQ mechanism, and the uplink PUSCH channel is a synchronous HARQ mechanism. That is to say, if the PDSCH reception fails, it can be retransmitted at any time. However, the PUSCH reception fails and must be retransmitted on the predetermined resource.
  • the terminal device needs to meet one of the two conditions to send the PUSCH: (1) receiving the uplink grant (UL grant) of the PDCCH scheduling or the response from the random access, or semi-static configuration; (2) receiving the physical hybrid automatic Repetitive Indication Channel (Physical Hybrid ARQ Indicator Channel, Jane Referred to as "PHICH") indicated as NACK, non-adaptive retransmission is required.
  • the terminal considers that the resource in n+Kphich feeds back whether the network device correctly received the information of the PUSCH.
  • each uplink PUCCH may carry k ⁇ K for the n-k, PDSCH or ACK ⁇ NACK feedback information of a semi-persistent scheduled (Semi Persistent Schedule, simply “SPS”) through the PDCCH.
  • SPS semi-persistent scheduled
  • DAI Downlink Assignment Index
  • the PUCCH may carry an ACK of nk, k ⁇ K, PDSCH or PDCCH. ⁇ NACK feedback information.
  • the terminal device in the n subframe transmits the PUSCH, and the terminal device knows whether the PHICH transmitted in the downlink subframe of the n+Kphich is the feedback NPN subframe whether the PUSCH receives the correct NACK ⁇ ACK information.
  • the terminal device receives the PHICH on n subframes, the PHICH is the PUSCH transmitted by the terminal device on n-k.
  • the PDCCH transmitted on the n subframes schedules the PUSCH information, and the PUSCH in the actually scheduled n+k uplink subframe performs data transmission.
  • the NACK indicated by the PHICH is received, and the terminal also performs data transmission on the PUSCH in the uplink subframe of n+k.
  • the downlink may also use a transmission time interval ("TTI") Bundling mode, if the terminal device detects a PDCCH retransmission indication in the subframe n, or detects the NACK indicated by the PHICH in the subframe n1. , PUSCH transmission will be performed on the n+k subframe.
  • TTI transmission time interval
  • the interference of the PUCCH and the PDCCH channel may be further reduced by using a time division or a frequency division.
  • the second uplink and downlink ratio corresponds to the former of the m 1 subframes.
  • T m symbols for the PDCCH transmission the symbols for transmission T n PUCCH, m 1, T m and T n is a positive integer, and T m and T n is less than or equal to a first predetermined threshold;
  • the F m subcarriers on both sides of the system bandwidth corresponding to each of the m 2 subframes corresponding to the second uplink and downlink ratio are used to transmit the PUCCH, and the intermediate F n subcarriers of the system bandwidth are used.
  • m 2 , F m and F n are positive integers, and the sum of F m and F n is less than or equal to a second predetermined threshold;
  • N is the number of subframes included in a radio frame.
  • the number of subframes included in one radio frame is 10.
  • the first preset threshold may be any positive integer that is less than or equal to the number of symbols included in each subframe, and the second preset threshold may be less than or equal to the number of subcarriers corresponding to the system bandwidth corresponding to each subframe. Any positive integer.
  • time-division can be used to avoid interference between PUCCH and PDCCH
  • frequency division can be used to avoid interference of PUCCH and PDCCH.
  • a time division manner may be adopted to ensure that the downlink PDCCH channel design is unchanged; and the frequency division may be adopted in the subframe 2 in the uplink and downlink ratio 0 to 6.
  • the mode ensures that the uplink PUCCH channel design is unchanged.
  • the invention is not limited to this.
  • the network device may reconfigure the uplink-downlink ratio of the terminal device by the uplink-downlink ratio of the cell in which the terminal device is located to the terminal.
  • the uplink and downlink ratios of the cells in which the device is located are different from the uplink and downlink ratios, so that the network device can perform wireless communication with different uplink and downlink ratios of different terminal devices in the same cell, thereby being able to utilize the full pair of network devices. Work capacity to improve spectrum resource utilization.
  • the method for wireless communication according to an embodiment of the present invention is described in detail above from the network device side with reference to FIG. 2 to FIG. 8.
  • the method for wireless communication according to an embodiment of the present invention will be described in detail below from the terminal device side with reference to FIG. 9 and FIG. It should be understood that the interaction between the terminal device and the network device described in the network device side and related features, functions, and the like correspond to the description on the terminal device side, and the repeated description is omitted as appropriate for brevity.
  • FIG. 9 is a schematic flowchart of a method for wireless communication according to another embodiment of the present invention. The method may be performed by a terminal device. As shown in FIG. 9, the method 300 includes:
  • S320 Receive a second uplink and downlink ratio that is sent by the network device, where the second uplink and downlink ratio is a specific uplink and downlink ratio of the terminal device, and the second uplink and downlink ratio is matched with the first uplink and downlink Different than
  • the terminal device establishes a radio resource control RRC connection with the network device according to the first uplink-downlink ratio, and then receives the second uplink-downlink ratio sent by the network device, and according to the second uplink-downlink ratio and the network device. Make wireless communication.
  • the terminal device after establishing an RRC connection with the network device, receives the uplink-downlink ratio specific to the terminal device sent by the network device, and according to the uplink-downlink ratio and network specific to the terminal device.
  • the device communicates. Therefore, the terminal devices in the same cell can perform wireless communication with the network device according to different uplink and downlink ratios. Therefore, the full-duplex capability of the network device can be utilized to improve spectrum resource utilization.
  • wireless communication is performed with the network device according to the first uplink-downlink ratio.
  • the terminal device when the state transitions from the RRC connected state to the RRC idle state, the terminal device still communicates with the network device according to the cell-specific uplink-downlink ratio instead of the terminal device-specific uplink-downlink ratio.
  • the terminal device may pre-arrange with the network device.
  • the terminal device automatically configures the uplink and downlink ratio as the cell-specific uplink-downlink ratio.
  • the terminal device may receive one of the different uplink and downlink ratios sent by the network device to the multiple terminal devices. That is to say, the network device can send different terminal device-specific uplink-downlink ratios to multiple terminal devices in the cell. At this time, there are at least three uplink-downlink ratios in one cell.
  • the terminal device receives the RRC dedicated signaling sent by the network device, where the RRC dedicated signaling carries the second uplink and downlink ratio;
  • the terminal device receives the downlink physical control channel PDCCH signaling sent by the network device, where the PDCCH signaling carries the second uplink and downlink ratio; or
  • the terminal device receives the enhanced physical downlink control channel (ePDCCH) signaling sent by the network device, where the ePDCCH signaling carries the second uplink and downlink ratio.
  • ePDCCH enhanced physical downlink control channel
  • the terminal device receives, by the network device, a first proportion configuration message including the second uplink and downlink ratio, where the first ratio configuration message is the network device to the terminal that includes the terminal device
  • the first proportion configuration message sent by each terminal device in the group includes the group sequence number of the terminal group.
  • the second ratio configuration message may carry beam information of the beam, for example, the beam information may be a sequence number of the beam.
  • the beam corresponding to the terminal may also be determined by a precoding matrix corresponding to the beam, a beam precoding matrix sequence number, and a physical channel transmission format of the uplink and downlink proportioning message specific to the transmission terminal device.
  • the second uplink-downlink ratio is any one of the uplink and downlink ratios in the first uplink-downlink ratio set, where the first uplink-downlink ratio set is as shown in Table 4 below.
  • D represents a downlink subframe
  • U represents an uplink subframe
  • S represents a special subframe
  • the second uplink and downlink ratio is any one of the uplink and downlink ratios in the second uplink and downlink ratio set, and the second uplink and downlink ratio set is as shown in Table 5 below.
  • D is a downlink subframe
  • U is an uplink subframe
  • S is a special subframe
  • X is not limited. set.
  • the subframe 0 corresponding to the uplink-downlink ratio 7 is an uplink subframe, and the subframe 0 is used to transmit the probe reference signal SRS and/or the preamble 4.
  • the second uplink-downlink ratio is an uplink-downlink ratio of the secondary carrier of the terminal device.
  • the method 300 further includes:
  • the uplink control information of the secondary carrier is sent to the network device by using a physical uplink control channel PUCCH configured on the primary cell Pscell, where the uplink control information includes at least one of the following information: hybrid automatic repeat request (HARQ feedback) Confirmation information, channel quality information, and scheduling request information.
  • HARQ feedback hybrid automatic repeat request
  • the F m subcarriers on both sides of the system bandwidth corresponding to each of the m 2 subframes corresponding to the second uplink and downlink ratio are used to transmit the PUCCH, and the intermediate F n subcarriers of the system bandwidth are used.
  • m 2 , F m and F n are positive integers, and the sum of F m and F n is less than or equal to a second predetermined threshold;
  • N is the number of subframes included in a radio frame.
  • the number of subframes included in one radio frame is 10.
  • the first preset threshold may be any positive integer that is less than or equal to the number of symbols included in each subframe, and the second preset threshold may be less than or equal to the number of subcarriers corresponding to the system bandwidth corresponding to each subframe. Any positive integer.
  • time-division can be used to avoid interference between PUCCH and PDCCH
  • frequency division can be used to avoid interference of PUCCH and PDCCH.
  • a time division manner may be adopted to ensure that the downlink PDCCH channel design is unchanged; and the frequency division may be adopted in the subframe 2 in the uplink and downlink ratio 0 to 6.
  • the mode ensures that the uplink PUCCH channel design is unchanged.
  • the invention is not limited to this.
  • the terminal device after establishing an RRC connection with the network device, receives the uplink-downlink ratio specific to the terminal device sent by the network device, and according to the uplink-downlink ratio and network specific to the terminal device.
  • the device communicates. Therefore, the terminal devices in the same cell can perform wireless communication with the network device according to different uplink and downlink ratios, and therefore can utilize The full-duplex capability of network equipment improves the utilization of spectrum resources.
  • the network device 10 includes:
  • the connection establishing module 11 is configured to establish a radio resource control RRC connection with the terminal device according to the first uplink-downlink ratio, where the first uplink-downlink ratio is a cell-specific uplink-downlink ratio;
  • the sending module 12 is configured to send a second uplink-downlink ratio to the terminal device, where the second uplink-downlink ratio is a terminal device-specific uplink-downlink ratio, the second uplink-downlink ratio and the first The ratio of the uplink and the downlink is different;
  • the communication module 13 is configured to perform wireless communication with the terminal device according to the second uplink and downlink ratio.
  • the network device and the terminal device establish a radio resource control RRC connection according to the first uplink-downlink ratio of the cell where the terminal device is located, and then the network device sends the second uplink and downlink ratio to the terminal device.
  • the terminal device switches the uplink-downlink ratio configured by the first uplink-downlink ratio to the second uplink-downlink ratio, and according to the second uplink and downlink The ratio communicates with the network device.
  • the network device of the embodiment of the present invention may reconfigure the uplink-downlink ratio of the terminal device by the uplink-downlink ratio of the cell in which the terminal device is located to be the same as the cell in which the terminal device is located.
  • the uplink and downlink ratios are different from the uplink and downlink ratios, so that the network device can perform wireless communication with different uplink and downlink ratios of different terminal devices in the same cell. Therefore, the full duplex capability of the network device can be utilized to improve the spectrum. Resource utilization.
  • the communication module 13 is further configured to perform wireless communication with the terminal device according to the first uplink-downlink ratio when determining that the state of the terminal device is the RRC idle state.
  • the sending module 12 is specifically configured to:
  • ePDCCH signaling Sending an enhanced physical downlink control channel ePDCCH signaling to the terminal device, where the ePDCCH signaling carries the second uplink and downlink ratio.
  • the sending module 12 is specifically configured to: include the terminal Each terminal device in the terminal group of the device sends a first proportion configuration message including the second uplink and downlink ratio, where the first ratio configuration message includes a group sequence number of the terminal group.
  • the sending module 12 is specifically configured to: send, by using a beam corresponding to the terminal group of the terminal device, a second uplink and downlink ratio to each terminal device in the terminal group.
  • the second ratio configuration message is specifically configured to: send, by using a beam corresponding to the terminal group of the terminal device, a second uplink and downlink ratio to each terminal device in the terminal group. The second ratio configuration message.
  • the second uplink-downlink ratio is any one of the uplink and downlink ratios in the first uplink-downlink ratio set, where the first uplink-downlink ratio set is as shown in the following table.
  • D represents a downlink subframe
  • U represents an uplink subframe
  • S represents a special subframe
  • the second uplink-downlink ratio is any one of the uplink and downlink ratios in the second uplink-downlink ratio set, where the second uplink-downlink ratio set is as shown in the following table.
  • D represents a downlink subframe
  • U represents an uplink subframe
  • X represents no limitation.
  • the subframe 0 corresponding to the uplink-downlink ratio 7 is an uplink subframe, and the subframe 0 is used to transmit the probe reference signal SRS and/or the preamble 4.
  • the second uplink-downlink ratio is an uplink-downlink ratio of the secondary carrier of the terminal device.
  • the network device further includes:
  • the receiving module 14 is configured to receive uplink control information of the secondary carrier that is sent by the terminal device by using a physical uplink control channel (PUCCH) configured on the primary cell Pscell, where the uplink control information includes at least one of the following information:
  • the request HARQ feedback confirmation information, channel quality information, and scheduling request information are transmitted.
  • the F m subcarriers on both sides of the system bandwidth corresponding to each of the m 2 subframes corresponding to the second uplink and downlink ratio are used for transmitting the PUCCH, and the intermediate F n subcarriers of the system bandwidth are used for transmitting the PDCCH, m 2 , F m and F n are positive integers, and the sum of F m and F n is less than or equal to a second predetermined threshold;
  • N is the number of subframes included in a radio frame.
  • the number of subframes included in one radio frame is 10.
  • the sending module 12 is specifically configured to: send different second uplink and downlink ratios to multiple terminal devices.
  • the network device 10 may correspond to the method 200 of performing wireless communication in the embodiment of the present invention, and the above and other operations and/or functions of the respective modules in the network device 10 are respectively implemented to implement FIG. 2 Corresponding processes of the respective methods in FIG. 6 are not described herein for brevity.
  • the network device of the embodiment of the present invention may reconfigure the uplink-downlink ratio of the terminal device by the uplink-downlink ratio of the cell in which the terminal device is located to be the same as the cell in which the terminal device is located.
  • the uplink and downlink ratios are different from the uplink and downlink ratios, so that the network device can perform wireless communication with different uplink and downlink ratios of different terminal devices in the same cell. Therefore, the full duplex capability of the network device can be utilized to improve the spectrum. Resource utilization.
  • FIG. 13 shows a terminal device according to an embodiment of the present invention.
  • the terminal device 20 includes:
  • the connection establishing module 21 is configured to establish a radio resource control RRC connection with the network device according to the first uplink-downlink ratio, where the first uplink-downlink ratio is a cell-specific uplink-downlink ratio;
  • the receiving module 22 is configured to receive a second uplink and downlink ratio that is sent by the network device, where the second uplink and downlink ratio is a specific uplink and downlink ratio of the terminal device, and the second uplink and downlink ratio is matched with the first uplink and downlink Different than
  • the communication module 23 is configured to perform wireless communication with the network device according to the second uplink and downlink ratio received by the receiving module 22.
  • the terminal device establishes a radio resource control RRC connection with the network device according to the first uplink-downlink ratio, and then receives the second uplink-downlink ratio sent by the network device, and according to the second uplink-downlink ratio and the network device. Make wireless communication.
  • the terminal device of the embodiment of the present invention receives the uplink-downlink ratio specified by the network device, and communicates with the network device according to the uplink-downlink ratio specified by the terminal device. Therefore, the terminal devices in the same cell can perform wireless communication with the network device according to different uplink and downlink ratios. Therefore, the full-duplex capability of the network device can be utilized to improve spectrum resource utilization.
  • the communication module 13 is further configured to:
  • wireless communication is performed with the network device according to the first uplink and downlink ratio.
  • the receiving module 12 is specifically configured to:
  • the receiving module 12 is further configured to: receive a first proportion configuration message that is sent by the network device, and includes the second uplink and downlink ratio, where the first ratio configuration message is And sending, by the network device, each terminal device in the terminal group that includes the terminal device, the first proportion configuration message includes a group sequence number of the terminal group.
  • the receiving module 12 is further configured to: receive the network device. And transmitting, by the beam corresponding to the terminal group of the terminal device, a second proportion configuration message including the second uplink and downlink ratio.
  • the second uplink-downlink ratio is any one of the uplink and downlink ratios in the first uplink-downlink ratio set, where the first uplink-downlink ratio set is as shown in the following table.
  • D represents a downlink subframe
  • U represents an uplink subframe
  • S represents a special subframe
  • the second uplink-downlink ratio is any one of the uplink and downlink ratios in the second uplink-downlink ratio set, where the second uplink-downlink ratio set is as shown in the following table.
  • D is a downlink subframe
  • U is an uplink subframe
  • S is a special subframe
  • X is not limited. set.
  • the subframe 0 corresponding to the uplink-downlink ratio 7 is an uplink subframe, and the subframe 0 is used to transmit the probe reference signal SRS and/or the preamble 4.
  • the second uplink-downlink ratio is an uplink-downlink ratio of the secondary carrier of the terminal device.
  • the terminal device further includes:
  • the sending module 24 is configured to send uplink control information of the secondary carrier to the network device by using a physical uplink control channel PUCCH configured on the primary cell Pscell, where the uplink control information includes at least one of the following information:
  • the request HARQ feedback confirmation information, channel quality information, and scheduling request information are transmitted.
  • the F m subcarriers on both sides of the system bandwidth corresponding to each of the m 2 subframes corresponding to the second uplink and downlink ratio are used for transmitting the PUCCH, and the intermediate F n subcarriers of the system bandwidth are used for transmitting the PDCCH, m 2 , F m and F n are positive integers, and the sum of F m and F n is less than or equal to a second predetermined threshold;
  • N is the number of subframes included in a radio frame.
  • the number of subframes included in one radio frame is 10.
  • the receiving module 22 is specifically configured to: receive one of the second uplink and downlink ratios of the different second uplink and downlink ratios that the network device sends to the multiple terminal devices.
  • terminal device 20 may correspond to the method 300 of performing wireless communication in the embodiment of the present invention, and the above and other operations and/or functions of the respective modules in the terminal device 20 are respectively implemented to implement FIG. Corresponding processes of the respective methods in FIG. 10 are not described herein for brevity.
  • the terminal device of the embodiment of the present invention receives the uplink-downlink ratio specified by the network device, and communicates with the network device according to the uplink-downlink ratio specified by the terminal device. Therefore, the terminal devices in the same cell can perform wireless communication with the network device according to different uplink and downlink ratios. Therefore, the full-duplex capability of the network device can be utilized to improve spectrum resource utilization.
  • an embodiment of the present invention further provides a network device 30.
  • the network device 30 includes a processor 31, a memory 32, a receiver 33, a transmitter 34, and a bus system 35.
  • the bus system 35 is optional.
  • the processor 31, the memory 32, the receiver 33 and the transmitter 34 can pass Connected to a bus system 35 for storing instructions for executing instructions stored by the memory 32 to control the receiver 33 to receive signals and the transmitter 34 to transmit signals.
  • the processor 31 is configured to establish a radio resource control RRC connection with the terminal device according to the first uplink-downlink ratio, where the first uplink-downlink ratio is a cell-specific uplink-downlink ratio, and the transmitter 34 is configured to the terminal.
  • the device sends a second uplink-downlink ratio, where the second uplink-downlink ratio is a specific uplink-downlink ratio of the terminal device, and the second uplink-downlink ratio is different from the first uplink-downlink ratio, and the processor 31 is further used for Performing wireless communication with the terminal device according to the second uplink and downlink ratio.
  • the network device of the embodiment of the present invention may reconfigure the uplink-downlink ratio of the terminal device by the uplink-downlink ratio of the cell in which the terminal device is located to be the same as the cell in which the terminal device is located.
  • the uplink and downlink ratios are different from the uplink and downlink ratios, so that the network device can perform wireless communication with different uplink and downlink ratios of different terminal devices in the same cell. Therefore, the full duplex capability of the network device can be utilized to improve the spectrum. Resource utilization.
  • the processor 31 may be a central processing unit (“CPU"), and the processor 31 may also be other general-purpose processors, digital signal processors (DSPs). , an application specific integrated circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, and the like.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the memory 32 can include read only memory and random access memory and provides instructions and data to the processor 31. A portion of the memory 32 may also include a non-volatile random access memory. For example, the memory 32 can also store information of the device type.
  • the bus system 35 may include a power bus, a control bus, a status signal bus, and the like in addition to the data bus. However, for clarity of description, various buses are labeled as bus system 35 in the figure.
  • each step of the above method may be completed by an integrated logic circuit of hardware in the processor 31 or an instruction in a form of software.
  • the steps of the method disclosed in the embodiments of the present invention may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor.
  • the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in the memory 32, and the processor 31 reads the information in the memory 32 and, in conjunction with its hardware, performs the steps of the above method. To avoid repetition, it will not be described in detail here.
  • the processor 31 is further configured to: determine the terminal device When the state is the RRC idle state, wireless communication is performed with the terminal device according to the first uplink-downlink ratio.
  • the transmitter 34 is specifically configured to:
  • ePDCCH signaling Sending an enhanced physical downlink control channel ePDCCH signaling to the terminal device, where the ePDCCH signaling carries the second uplink and downlink ratio.
  • the transmitter 34 is configured to: send, to each terminal device in the terminal group that includes the terminal device, a first proportion configuration message including the second uplink and downlink ratio, where A match configuration message includes a group sequence number of the terminal group.
  • the transmitter 34 is configured to send, by using a beam corresponding to the terminal group of the terminal device, a second packet that includes the second uplink and downlink ratio to each terminal device in the terminal group. Match configuration message.
  • the second uplink-downlink ratio is an uplink-downlink ratio of any one of the first uplink-downlink ratio set, where the first uplink-downlink ratio set is the uplink and downlink shown in the following table. Matching collection:
  • D represents a downlink subframe
  • U represents an uplink subframe
  • S represents a special subframe
  • the second uplink-downlink ratio is any one of the uplink and downlink ratios in the second uplink-downlink ratio set, where the second uplink-downlink ratio set is the uplink and downlink shown in the following table. Matching collection:
  • D represents a downlink subframe
  • U represents an uplink subframe
  • S represents a special subframe
  • X represents no limitation.
  • the subframe 0 corresponding to the uplink-downlink ratio 7 is an uplink subframe, where the subframe 0 is used to transmit the probe reference signal SRS and/or the preamble 4.
  • the second uplink-downlink ratio is an uplink-downlink ratio of the secondary carrier of the terminal device
  • the receiver 33 is configured to: receive the physical uplink control configured by the terminal device by using the primary cell Pscell.
  • the first T m symbols in the corresponding m 1 subframes of the second uplink-downlink ratio are used to transmit the PDCCH
  • the T n symbols are used to transmit the PUCCH
  • m 1 , T m , and T n is a positive integer, and the sum of T m and T n is less than or equal to a first predetermined threshold
  • the F m subcarriers on both sides of the system bandwidth corresponding to each of the m 2 subframes corresponding to the second uplink and downlink ratio are used for transmitting the PUCCH, and the intermediate F n subcarriers of the system bandwidth are used for transmitting the PDCCH, m 2 , F m and F n are positive integers, and the sum of F m and F n is less than or equal to a second predetermined threshold;
  • N is the number of subframes included in a radio frame.
  • the transmitter 34 is specifically configured to: send different second uplink and downlink ratios to multiple terminal devices.
  • the network device 30 may correspond to the network device 10 in the embodiment of the present invention, and may correspond to executing a corresponding body in the method according to an embodiment of the present invention, and The foregoing and other operations and/or functions of the respective modules in the network device 30 are respectively omitted in order to implement the corresponding processes of the respective methods in FIG. 2 and FIG. 6 for brevity.
  • the network device of the embodiment of the present invention may reconfigure the uplink-downlink ratio of the terminal device by the uplink-downlink ratio of the cell in which the terminal device is located to be the same as the cell in which the terminal device is located.
  • the uplink and downlink ratios are different from the uplink and downlink ratios, so that the network device can perform wireless communication with different uplink and downlink ratios of different terminal devices in the same cell. Therefore, the full duplex capability of the network device can be utilized to improve the spectrum. Resource utilization.
  • the embodiment of the present invention further provides a terminal device 40.
  • the terminal device 40 includes a processor 41, a memory 42, a transmitter 43, a receiver 44, and a bus system 45.
  • the bus system 45 is optional.
  • the processor 41, the memory 42, the transmitter 43, and the receiver 44 may be connected by a bus system 45 for storing instructions for executing instructions stored in the memory 42 to control the transmitter 43.
  • the transmit signal and receiver 44 receive the signal.
  • the processor 41 is configured to establish a radio resource control RRC connection with the network device according to the first uplink-downlink ratio, where the first uplink-downlink ratio is a cell-specific uplink-downlink ratio, and the receiver 44 is configured to receive the network.
  • the second uplink-downlink ratio is sent by the device, where the second uplink-downlink ratio is a specific uplink-downlink ratio of the terminal device, and the second uplink-downlink ratio is different from the first uplink-downlink ratio; the processor 41 is further used by The wireless communication is performed with the network device according to the second uplink-downlink ratio received by the receiver 44.
  • the terminal device of the embodiment of the present invention receives the uplink-downlink ratio specified by the network device, and communicates with the network device according to the uplink-downlink ratio specified by the terminal device. Therefore, the terminal devices in the same cell can perform wireless communication with the network device according to different uplink and downlink ratios. Therefore, the full-duplex capability of the network device can be utilized to improve spectrum resource utilization.
  • the processor 41 may be a central processing unit (“CPU"), and the processor 41 may also be other general-purpose processors, digital signal processors (DSPs). , an application specific integrated circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, and the like.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the memory 42 can include read only memory and random access memory and provides instructions and data to the processor 41.
  • a portion of the memory 42 may also include a non-volatile random access memory.
  • the memory 42 can also store information of the device type.
  • the bus system 45 may include a power bus, a control bus, a status signal bus, and the like in addition to the data bus. However, for clarity of description, various buses are labeled as bus system 45 in the figure.
  • each step of the above method may be completed by an integrated logic circuit of hardware in the processor 41 or an instruction in a form of software.
  • the steps of the method disclosed in the embodiments of the present invention may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor.
  • the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in the memory 42, and the processor 41 reads the information in the memory 42 and performs the steps of the above method in combination with its hardware. To avoid repetition, it will not be described in detail here.
  • the processor 41 is further configured to perform wireless communication with the network device according to the first uplink-downlink ratio when the state of the terminal device is an RRC idle state.
  • the receiver 44 is specifically configured to:
  • the receiver 44 is further configured to: receive, by the network device, a first proportion configuration message including the second uplink and downlink ratio, where the first proportion configuration message is the network device
  • the first proportion configuration message is sent to each terminal device in the terminal group including the terminal device, and includes a group sequence number of the terminal group.
  • the receiver 44 is further configured to: receive a second proportion configuration message that is sent by the network device by using a beam corresponding to the terminal group of the terminal device, and includes the second uplink and downlink ratio,
  • the second ratio configuration message includes beam information of the beam.
  • the second uplink-downlink ratio is an uplink-downlink ratio of any one of the first uplink-downlink ratio set, where the first uplink-downlink ratio set is the uplink and downlink shown in the following table. Matching collection:
  • D represents a downlink subframe
  • U represents an uplink subframe
  • S represents a special subframe
  • the second uplink-downlink ratio is any one of the uplink and downlink ratios in the second uplink-downlink ratio set, where the second uplink-downlink ratio set is the uplink and downlink shown in the following table. Matching collection:
  • D represents a downlink subframe
  • U represents an uplink subframe
  • S represents a special subframe
  • X represents no limitation.
  • the subframe 0 corresponding to the uplink-downlink ratio 7 is an uplink subframe, where the subframe 0 is used to transmit the probe reference signal SRS and/or the preamble 4.
  • the second uplink-downlink ratio is an uplink-downlink ratio of the secondary carrier of the terminal device
  • the transmitter 43 is configured to use the physical uplink control channel PUCCH configured on the primary cell Pscell to the network.
  • the device sends the uplink control information of the secondary carrier, where the uplink control information includes at least one of the following information: a hybrid automatic repeat request (HARQ feedback acknowledgement information), Channel quality information and scheduling request information.
  • HARQ feedback acknowledgement information HARQ feedback acknowledgement information
  • Channel quality information Channel quality information
  • the first T m symbols in the corresponding m 1 subframes of the second uplink-downlink ratio are used to transmit the PDCCH
  • the T n symbols are used to transmit the PUCCH
  • m 1 , T m , and T n is a positive integer, and the sum of T m and T n is less than or equal to a first predetermined threshold
  • the F m subcarriers on both sides of the system bandwidth corresponding to each of the m 2 subframes corresponding to the second uplink and downlink ratio are used for transmitting the PUCCH, and the intermediate F n subcarriers of the system bandwidth are used for transmitting the PDCCH, m 2 , F m and F n are positive integers, and the sum of F m and F n is less than or equal to a second predetermined threshold;
  • N is the number of subframes included in a radio frame.
  • the receiver 44 is specifically configured to: receive a second uplink and downlink ratio of the different second uplink and downlink ratios sent by the network device to the multiple terminal devices.
  • terminal device 40 may correspond to the terminal device 20 in the embodiment of the present invention, and may correspond to a corresponding body in the method according to the embodiment of the present invention, and each module in the terminal device 40
  • the above and other operations and/or functions are respectively implemented in order to implement the respective processes of the respective methods in FIG. 9 and FIG. 10, and are not described herein again for brevity.
  • the terminal device of the embodiment of the present invention receives the uplink-downlink ratio specified by the network device, and communicates with the network device according to the uplink-downlink ratio specified by the terminal device. Therefore, the terminal devices in the same cell can perform wireless communication with the network device according to different uplink and downlink ratios. Therefore, the full-duplex capability of the network device can be utilized to improve spectrum resource utilization.
  • system and “network” are used interchangeably herein. It should be understood that the term “and/or” herein is merely an association relationship describing an associated object, indicating that there may be three relationships, for example, A and/or B, which may indicate that A exists separately, and A and B exist simultaneously. There are three cases of B alone.
  • the character "/" in this article generally means that the contextual object is an "or" Relationship.
  • B corresponding to A means that B is associated with A, and B can be determined from A.
  • determining B from A does not mean that B is only determined based on A, and that B can also be determined based on A and/or other information.
  • the disclosed systems, devices, and methods may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • An integrated unit if implemented in the form of a software functional unit and sold or used as a standalone product, can be stored in a computer readable storage medium.
  • the technical solution of the present invention contributes in essence or to the prior art or the technical solution Portions may be embodied in the form of a software product stored in a storage medium, including instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform various embodiments of the present invention All or part of the steps of the method.
  • the foregoing storage medium includes: a USB flash drive, a mobile hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a disk or a CD.
  • ROM Read-Only Memory
  • RAM Random Access Memory

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention concerne, dans certains modes de réalisation, un procédé de communication sans fil, un dispositif de réseau et un dispositif de terminal. Le procédé comporte les étapes consistant à: établir une connexion de gestion des ressources radioélectriques (RRC) avec un dispositif de terminal selon une première configuration liaison montante-liaison descendante, la première configuration liaison montante-liaison descendante étant une configuration liaison montante-liaison descendante spécifique d'une cellule; envoyer une deuxième configuration liaison montante-liaison descendante à un dispositif de terminal, la deuxième configuration liaison montante-liaison descendante étant une configuration liaison montante-liaison descendante spécifique du dispositif de terminal, et la deuxième configuration liaison montante-liaison descendante étant différente de la première configuration liaison montante-liaison descendante; et réaliser une communication sans fil avec le dispositif de terminal selon la deuxième configuration liaison montante-liaison descendante. En conséquence, un dispositif de réseau peut réaliser une communication sans fil avec différents dispositifs de terminaux dans une même cellule en utilisant différentes configurations liaison montante-liaison descendante, de sorte que le taux d'utilisation de ressources du spectre peut être amélioré en utilisant une capacité de duplex intégral du dispositif de réseau.
PCT/CN2015/086496 2015-08-10 2015-08-10 Procédé de communication sans fil, dispositif de réseau et dispositif de terminal WO2017024467A1 (fr)

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CN201580071824.0A CN107113814A (zh) 2015-08-10 2015-08-10 无线通信的方法、网络设备和终端设备

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